The configuration of the TDO provides a wide effective bearing spread, making it ideal for applications in which overturning moments are a significant load component. TDO bearings can be used in fixed positions or allowed to float in the housing bore.
N/AThis part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components.
Dimensions
d - Bore
N/A6.2992 in160 mm
D - Cup Outer Diameter
N/A9.8375 in249.873 mm
B - Cone Width
N/A2.7500 in69.850 mm
C - Double Cup Width
N/A6.2992 in160.000 mm
T - Bearing Width across Cones
N/A6.0536 in153.761 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
N/A0.06 in1.5 mm
r - Cup Backface "To Clear" Radius2
N/A0.04 in1.0 mm
db - Cone Backface Backing Diameter
N/A6.81 in173 mm
Da - Cup Frontface Backing Diameter
N/A9.43 in239.01 mm
Aa - Cage-Cone Backface Clearance
N/A0.06 in1.5 mm
a - Effective Center Location3
N/A-0.68 in-17.3 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4
N/A35000 lbf156000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5
N/A235000 lbf1040000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6
N/A60900 lbf271000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7
N/A15800 lbf70400 N
Factors
K - Factor8
N/A2.21
e - ISO Factor9
N/A0.26
Y1 - ISO Factor10
N/A2.55
Y2 - ISO Factor11
N/A3.8
Cg - Geometry Factor12
N/A0.134
1 These maximum fillet radii will be cleared by the bearing corners.
2 These maximum fillet radii will be cleared by the bearing corners.
3 Negative value indicates effective center inside cone backface.
4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
5 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
6 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
7 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
10 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
11 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
12 Geometry constant for Lubrication Life Adjustment Factor a3l.